"compiler" directives

[CJason]

Since they say "anything you can write in C you can also do in Perl", how would one implement compiler directives in Perl. For example:

#ifdef WINDOWS
print "Windows!\n";
#elif defined(LINUX)
print "Linux!\n";
#endif

Thanks in advance!

 

[CJason]

I think I figured it out:

BEGIN {
if ($^O eq "MSWin32") {
print "Windows!\n";
} else {
print "Linux!\n";
}
}